Omnidirectional spin Hall effect in aWeyl spin-orbit-coupled atomic gas

被引：6

作者：

Armaitis, J. ^{[1
]}

Ruseckas, J. ^{[1
]}

Juzeliunas, G. ^{[1
]}

机构：

[1] Vilnius Univ, Inst Theoret Phys & Astron, Sauletekio Ave 3, LT-10222 Vilnius, Lithuania

来源：

PHYSICAL REVIEW A | 2017年 / 95卷 / 03期

关键词：

GAUGE POTENTIALS; EDGE STATES; PHASE; CURRENTS; REALIZATION; SINGLE; CHARGE;

D O I：

10.1103/PhysRevA.95.033635

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We show that in the presence of a three-dimensional (Weyl) spin-orbit coupling, a transverse spin current is generated in response to either a constant spin-independent force or a time-dependent Zeeman field in an arbitrary direction. This effect is the non-Abelian counterpart of the universal intrinsic spin Hall effect characteristic of the two-dimensional Rashba spin-orbit coupling. We quantify the strength of such an omnidirectional spin Hall effect by calculating the corresponding conductivity for fermions and noncondensed bosons. The absence of any kind of disorder in ultracold-atom systems makes the observation of this effect viable.

引用

页数：9

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